The recent surge in UK government borrowing costs has reignited debate over the influence of bond markets on political decision-making. Last week, 30-year gilt yields hit 5.85%, a near three-decade high, while 10-year yields climbed above 5.18% for the first time since the 2008 financial crisis. These figures are expected to rise further amid ongoing political instability.
The spike follows a period of turmoil in Westminster, including a brief Labour leadership contest and the lingering effects of Liz Truss's mini-budget. Critics argue that the need to appease bond markets stifles radical economic reform, with some Labour figures like Andy Burnham and Paula Barker suggesting the party should not be beholden to market pressures.
Professor Daniela Gabor of SOAS explains that rising borrowing costs force governments to allocate more revenue to debt servicing. The UK currently spends over £100bn annually on debt interest, with a debt-to-GDP ratio of 94%. Despite this, the UK has the highest borrowing costs among G7 nations, with rates exceeding those of Germany, France, and the US.
Foreign investors hold about 35% of UK gilts, while British pension funds and insurance corporations hold 20%. The Bank of England holds a further 20%. The long-term upward trajectory of yields suggests persistent fiscal challenges, with many observers questioning whether the bond market is making Britain ungovernable.
